Wellbore gun perforating system and method

US9759049B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9759049-B2
Application numberUS-201615090967-A
CountryUS
Kind codeB2
Filing dateApr 5, 2016
Priority dateFeb 20, 2015
Publication dateSep 12, 2017
Grant dateSep 12, 2017

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

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  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

A wellbore perforating system and method with reliable and safer connections in a perforating gun assembly is disclosed. The system/method includes a gun string assembly (GSA) deployed in a wellbore with multiple perforating guns attached to plural switch subs. The perforating guns are pre-wired with a cable having multi conductors; the multi conductors are connected to electrical ring contacts on either end of the perforating guns. The switch subs are configured with electrical contacts that are attached to the electrical contacts of the perforating guns without the need for manual electrical connections and assembly in the field of operations. The system further includes detonating with a detonator that is positioned upstream of the perforating gun. The detonator is wired to a switch that is positioned downstream of the perforating gun.

First claim

Opening claim text (preview).

What is claimed is: 1. A perforating gun system for use in a wellbore casing comprising a wired perforating gun; said wired perforating gun comprises a charge holder tube; said charge holder tube disposed within a body of said perforating gun; said charge holder tube wired with a cable; said cable disposed circumferentially around said charge holder tube; said cable comprising a plurality of conducting wires; said plurality of conducting wires are configured for direct operative electrical connections to a switch sub. 2. The perforating gun system of claim 1 wherein said plurality of conducting wires are each configured for operative electrical connections to one of a plurality of electrical contacts; said plurality of electrical contacts are positioned in an end plate in said charge holder tube. 3. The perforating gun system of claim 1 wherein said cable further comprises at least two conducting wires. 4. The perforating gun system of claim 1 wherein said cable is a through conducting wire.

Assignees

Inventors

Classifications

  • Arrangements for electric ignition (dynamo-electric generators H02K) · CPC title

  • Shaped-charge perforators (E21B43/118 takes precedence) · CPC title

  • Ignition systems · CPC title

  • Relative timing of multiple charges ({F42D1/043 and } F42D1/055 take precedence) · CPC title

  • specially adapted for firing multiple charges with a time delay · CPC title

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Frequently asked questions

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What does patent US9759049B2 cover?
A wellbore perforating system and method with reliable and safer connections in a perforating gun assembly is disclosed. The system/method includes a gun string assembly (GSA) deployed in a wellbore with multiple perforating guns attached to plural switch subs. The perforating guns are pre-wired with a cable having multi conductors; the multi conductors are connected to electrical ring contacts…
Who is the assignee on this patent?
Geodynamics Inc
What technology area does this patent fall under?
Primary CPC classification E21B43/1185. Mapped technology areas include Fixed Constructions.
When was this patent published?
Publication date Tue Sep 12 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).